pure organisms

A man with white hair and a dark coat stares intensely at the camera with wide eyes and an open mouth, then his expression shifts to a stern, pursed-lip look. The scene cuts to a man in a stained white coat standing in a dimly lit room, reaching toward a wall-mounted electrical panel. The man in the white coat then appears on a city street, holding a glowing lightbulb and extending his arm forward. He is next seen from behind, walking toward a building and reaching for a door handle. Finally, a man in a uniform and cap stands on a street, extending his hand toward a small child.